Beriso, M., and G. . Asefa. “Genotype-Environment Interaction and Stability Analysis for Tuber Yield of Potato (Solanumtuberosum L.) Genotypes”. Scientific Journal of Crop Science, vol. 9, no. 4, July 2020, pp. 425-9, http://sjournals.com/index.php/sjcs/article/view/1524.